1223912 has 8 divisors (see below), whose sum is σ = 2294850. Its totient is φ = 611952.

The previous prime is 1223897. The next prime is 1223921. The reversal of 1223912 is 2193221.

It can be written as a sum of positive squares in only one way, i.e., 1223236 + 676 = 1106^2 + 26^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76487 + ... + 76502.

2^1223912 is an apocalyptic number.

It is an amenable number.

1223912 is a deficient number, since it is larger than the sum of its proper divisors (1070938).

1223912 is a wasteful number, since it uses less digits than its factorization.

1223912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152995 (or 152991 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 1223912 is about 1106.3055635764. The cubic root of 1223912 is about 106.9670612211.

The spelling of 1223912 in words is "one million, two hundred twenty-three thousand, nine hundred twelve".